Add 1/3 and 24/21
1st number: 1/3, 2nd number: 1 3/21
1/3 + 24/21 is 31/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
1/3 = 1 × 7/3 × 7 = 7/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
24/21 = 24 × 1/21 × 1 = 24/21 - Add the two like fractions:
7/21 + 24/21 = 7 + 24/21 = 31/21 - So, 1/3 + 24/21 = 31/21
In mixed form: 110/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3+24/21 1/3+48/21 1/6+24/21 1/3+24/42 1/3+72/21 1/9+24/21 1/3+24/63 5/3+24/21 1/15+24/21 7/3+24/21 1/21+24/21